Stove



H.. C. MARCH.

Magazine Stove.

Patented Sept. 28, 1869.

each other;

duh-ed gist-tire haunt chitin.

'HENRY'C. MARCH, or LIMERICK STATION, PENNSYLVANIA.

Letters Patent No. 95,364, dated September 28, i869.

BASE-BURNING- s'rovn,

The Schedule referred. to in these Letters Patent and making part cf'the same.

To all whom it may concern.-

-, Be it known that I, HENRY 0. MARCH, of Limerick Station, Montgomery county, Pennsylvania, have invented certain Improvements in Hcating-Stoves; and I do hereby declare the following to be a full, clear, and exact description of the same.

- My invention'consists in certain improvements, frilly described hereafter, in the base-burning stove,-fo r which Letters Patent were granted to me on the 1st day of June, A. D. 1869.

In order to enable others-skilled in the art to make r and apply my invention, I will now proceed to describe the mode of constructing and using the same, reference being had to the accompanying drawing, which forms a part of this'specification, and in which- Figure 1 is a vertical sectional view of my improved base-burning stove; 1

' Figure 2, a detached sectional view of the movable grate and fire-pot Figures 3 and 4, perspective views of the two portions of the coal-feeder or reservoir, detached from ashes, &'c., and to the top of this base is joined a cas-,

ing, B, which increases in diameter toward its upper end, where it is provided with-a horizontal flange or ledge, a.

Instead of having a stationary fire-pot, and-movable grate beneath the same, as described in my aforesaid patent of J nne 1, 1869; I now construct the grate and fire-pot in one piece of cast-iron, and of the'peculiar basin-like form shown at F, figs. 1 and 2, this combincd portion resting upon the ledge a, which is corrugated, as best observed in fig. 7, and being arranged to turn upon the same when'operatedby its rod b, which projects through a slot in the front of the casing B.

That portion of the movable grate or fire-pot which rests upon the corrugated ledge a, is furnished with a number of holes, f, which, when the grate is at rest, are, closed by the plain portion a of the ledge, but which, when the grate is shaken, are caused to pass over the corrugations of the ledge, as seen in fig.7. These'corrugations form channels through which, and through the openings f,.particles of dust are carried into the fire-chamber and consumed.

In the grate is a hinged door, 0, which is supported by a rod, 1, shown by dotted lines, fig. 1, in a manner fully described in my former patent, and which is arranged to fall by its own'weight when the support of this rodis removed.

By casting the grate and fire-pot in one piece, as above described, a considerable saving in the first .cost of the stove is effected, and fi'om the fact of thewhole being movable, the coals can be more readily and eti'ect-nally raked and shaken down by operating the rod?) than when the fire-pot is made stationaryas heretofore. 1

The curved casing H, which encloses the fire-chain'- her, and around which the usual mica doors are arranged, is suitably secured to the casing B, and is sur= mounted bya cylindrical casing, I, to which the top J of the stove is attached.

Thecoal-reservoir or'feeder consists bf twocylinders, K and K, the former of which isupermanently suspended within the stove,- as usual, while the latter fits over and is arranged to be adjusted upon the cylinder K, in such a manner that the length of the whole reservoircan be increased or diminished at pleasure.

This adjustment is effected by means oian-ex ternal spiral rib, e, of the cylinder K, and a corresponding internal rib, e, of the cylinder K, the simple turning of the latter causing it to be raised or lowered byreason of the screw-like action of its rib upon the supportingrib. e of thecylinder K.

This adjustment of the length of the coal-reservoir,

whether effected as abovedes'cribed or by equivalent means, is a most important feature-of my invention,

as the quantity of coal consumed,- and the intensity of Q the fire and extent of actual burning-surface can, in a:

great measure, be regulated by it. For" instance, when the cylinder K is lowered to its'full extent, as shown infig. 1, it projects so far into the fire-pot that it will dcadenthe central portion of the firewithout actually extinguishing it, and will only permit the narrow sprrouuding circle of coals to burn. This will efi'ecta considerable saving ofi'uel over night, or when but'a small amount of heat'is required.

By slightly raising the cylinder K, a greater quantity of coals will be permitted to .burn, and by raising it to its full extent, so as to be entirely above the firepot, and free from contact with. the coals, a fire as intense as may be desired can be created.

The throttle-valve L, which in my former patent was arranged at the lower end of the reservoir, is, in the present instance, contained in the adjustable portion K, its object being the same, namely, tofch'eek the passage ofcoals whenthe grate is tobe cleaned, 8m.

The conductor. at the top of the stove, through which the reservoir is filled with coals, consists, as in my former patent, of a sliding. scoop, M, and of a hinged lid or cover, M1, above thesamey-the scoop and its lid together, when: closed, conforming to the shape of the top of the stove, and the lid being arranged to rise when the scoop is drawn outward.

This raising of the lid, which was effected in my former patent by a link hinged to both lid and scoop, is accomplished in the present instance by alug, h, on the side of the scoop, which strikes a rigid rod, h, of the lid, this plan being more efl'ective, interfering less with the operation of the scoop, and enabling the lid to be raised higher than by the old method.

In drawing out the scoop, however, much gas escapes into the room or apartment. This is prevented by means of dampers land I, which areso arranged, that on drawing out the scoop, the damper I shall be opened and the damper I remain shut, thus allowing the gas to pass upward into the top of the stove, and escape to the chimney.

This operating offthe dampers is efiected in the following manner: r

In drawing out the scoop, its i lugs t" ,1, strike similar lugs z" t, on the edge of the damper I, and cause ,the same to be opened.

A lug, j, on the face of the damper I, by striking a' rod, 1, attached to the damper 1', causes the latter at the sametime to beclosed.

The opening and shntting'of the damper can also be effected by simply operating the damper 1, without opening the scoop.

I claim as my invention, and desire to secure by Letters Patent- 1. A movable grate and fire-pot, combined substantially in the manner described.

2. A coal-reservoir or feeder, consisting of two cylinders K and K, one of which is so arranged to slide on or to be adjusted upon the other that the length of the reservoir can be increased or diminished as required.

3. The spiral ribs or threads 0 and 0, formed on the two sections of the reservoir, and adapted to each other. substantially as herein set forth.

4. The throttle-valve L, when arranged in the lower adjustable portion of the reservoir, as described.

5. The combination of the scoop M, and its lug or" lugs h, with the hinged lid M, and its rod or rods h,

all substantially as herein setiforth.

, 6. The arrangement of -dampers I and I, in combination with the scoop M, substantially as described.

7. The combination, with the corrugated or channelled ledge a, of the movable perforated fire-pot F, all substantially as herein set forth.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

Witnesses: v HENRY 0. MARCH.

JAS. BROWNBACK, JOHN H. Townes. 

